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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1#!/usr/bin/env python3
2# Copyright (c) 2018-present The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6from test_framework.messages import (
7    tx_from_hex,
8)
9from test_framework.test_framework import BitcoinTestFramework
10from test_framework.util import (
11    assert_equal,
12    assert_raises_rpc_error,
13)
14from test_framework.blocktools import (
15    TIME_GENESIS_BLOCK,
16)
17
18from decimal import Decimal
19
20class CreateTxWalletTest(BitcoinTestFramework):
21    def set_test_params(self):
22        self.setup_clean_chain = True
23        self.num_nodes = 1
24        self.extra_args = [[]]
25
26    def skip_test_if_missing_module(self):
27        self.skip_if_no_wallet()
28
29    def run_test(self):
30        self.log.info('Create some old blocks')
31        self.nodes[0].setmocktime(TIME_GENESIS_BLOCK)
32        self.generate(self.nodes[0], 200)
33        self.nodes[0].setmocktime(0)
34
35        self.test_anti_fee_sniping()
36        self.test_tx_size_too_large()
37        self.test_create_too_long_mempool_chain()
38        self.test_version3()
39
40    def test_anti_fee_sniping(self):
41        self.log.info('Check that we have some (old) blocks and that anti-fee-sniping is disabled')
42        assert_equal(self.nodes[0].getblockchaininfo()['blocks'], 200)
43        txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1)
44        tx = self.nodes[0].gettransaction(txid=txid, verbose=True)['decoded']
45        assert_equal(tx['locktime'], 0)
46
47        self.log.info('Check that anti-fee-sniping is enabled when we mine a recent block')
48        self.generate(self.nodes[0], 1)
49        txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1)
50        tx = self.nodes[0].gettransaction(txid=txid, verbose=True)['decoded']
51        assert 0 < tx['locktime'] <= 201
52
53    def test_tx_size_too_large(self):
54        # More than 10kB of outputs, so that we hit -maxtxfee with a high feerate
55        outputs = {self.nodes[0].getnewaddress(address_type='bech32'): 0.000025 for _ in range(400)}
56        raw_tx = self.nodes[0].createrawtransaction(inputs=[], outputs=outputs)
57
58        for fee_setting in ['-minrelaytxfee=0.01', '-mintxfee=0.01']:
59            self.log.info('Check maxtxfee in combination with {}'.format(fee_setting))
60            self.restart_node(0, extra_args=[fee_setting])
61            assert_raises_rpc_error(
62                -6,
63                "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)",
64                lambda: self.nodes[0].sendmany(dummy="", amounts=outputs),
65            )
66            assert_raises_rpc_error(
67                -4,
68                "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)",
69                lambda: self.nodes[0].fundrawtransaction(hexstring=raw_tx),
70            )
71
72        # Hit maxtxfee with explicit fee rate
73        self.log.info('Check maxtxfee in combination with explicit fee_rate=1000 sat/vB')
74
75        fee_rate_sats_per_vb = Decimal('0.01') * Decimal(1e8) / 1000  # Convert 0.01 BTC/kvB to sat/vB
76
77        assert_raises_rpc_error(
78            -6,
79            "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)",
80            lambda: self.nodes[0].sendmany(dummy="", amounts=outputs, fee_rate=fee_rate_sats_per_vb),
81        )
82        assert_raises_rpc_error(
83            -4,
84            "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)",
85            lambda: self.nodes[0].fundrawtransaction(hexstring=raw_tx, options={'fee_rate': fee_rate_sats_per_vb}),
86        )
87
88    def test_create_too_long_mempool_chain(self):
89        self.log.info('Check too-long mempool chain error')
90        df_wallet = self.nodes[0].get_wallet_rpc(self.default_wallet_name)
91
92        self.nodes[0].createwallet("too_long")
93        test_wallet = self.nodes[0].get_wallet_rpc("too_long")
94
95        tx_data = df_wallet.send(outputs=[{test_wallet.getnewaddress(): 25}], options={"change_position": 0})
96        txid = tx_data['txid']
97        vout = 1
98
99        self.nodes[0].syncwithvalidationinterfacequeue()
100        options = {"change_position": 0, "add_inputs": False}
101        for i in range(1, 25):
102            options['inputs'] = [{'txid': txid, 'vout': vout}]
103            tx_data = test_wallet.send(outputs=[{test_wallet.getnewaddress(): 25 - i}], options=options)
104            txid = tx_data['txid']
105
106        # Sending one more chained transaction will fail
107        options = {"minconf": 0, "include_unsafe": True, 'add_inputs': True}
108        assert_raises_rpc_error(-4, "Unconfirmed UTXOs are available, but spending them creates a chain of transactions that will be rejected by the mempool",
109                                test_wallet.send, outputs=[{test_wallet.getnewaddress(): 0.3}], options=options)
110
111        test_wallet.unloadwallet()
112
113    def test_version3(self):
114        self.log.info('Check wallet does not create transactions with version=3 yet')
115        wallet_rpc = self.nodes[0].get_wallet_rpc(self.default_wallet_name)
116
117        self.nodes[0].createwallet("version3")
118        wallet_v3 = self.nodes[0].get_wallet_rpc("version3")
119
120        tx_data = wallet_rpc.send(outputs=[{wallet_v3.getnewaddress(): 25}], options={"change_position": 0})
121        wallet_tx_data = wallet_rpc.gettransaction(tx_data["txid"])
122        tx_current_version = tx_from_hex(wallet_tx_data["hex"])
123
124        # While version=3 transactions are standard, the CURRENT_VERSION is 2.
125        # This test can be removed if CURRENT_VERSION is changed, and replaced with tests that the
126        # wallet handles TRUC rules properly.
127        assert_equal(tx_current_version.version, 2)
128        wallet_v3.unloadwallet()
129
130
131if __name__ == '__main__':
132    CreateTxWalletTest(__file__).main()
133

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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